RIO VISTA — Three women and two toddler girls were killed when their small car slammed into an oncoming pickup truck Saturday on two-lane Highway 12.

The five dead were all in a Honda Civic that was in a passing lane near Rio Vista about at about 5:30 p.m. Saturday, the California Highway Patrol said.

The Civic was heading east on Highway 12 about 2 miles from Highway 160 near Rio Vista, CHP Officer Michael Bradley said.

The car had already passed one vehicle and was attempting to pass another when the driver apparently realized she didn’t have enough room to pass and tried to merge back into the eastbound lane, Bradley said.

The driver swerved, overcorrected and spun back into the westbound lane, he said. An oncoming Chevy Silverado pickup truck was unable to avoid hitting the Civic. The truck The three women — two in their 20s or 30s and one teen — and one girl of about 2 or 3 years old, died at the scene, Bradley said. The second child died a few hours later at a hospital.

The four people in the Silverado, a married couple and two older children, were hospitalized but not seriously injured, the CHP said. All were wearing seat belts, and the truck’s air bags had deployed.

It was unclear whether the people in the Civic were wearing seat belts. There was only one child seat found inside, Bradley said.

No names have been released.

The area had periodic rains on Saturday, but it wasn’t clear if a slick road was a factor in the car losing control.

RIO VISTA — Three women and two toddler girls were killed when their small car slammed into an oncoming pickup truck Saturday on two-lane Highway 12.

The five dead were all in a Honda Civic that was in a passing lane near Rio Vista about at about 5:30 p.m. Saturday, the California Highway Patrol said.

The Civic was heading east on Highway 12 about 2 miles from Highway 160 near Rio Vista, CHP Officer Michael Bradley said.

The car had already passed one vehicle and was attempting to pass another when the driver apparently realized she didn’t have enough room to pass and tried to merge back into the eastbound lane, Bradley said.

The driver swerved, overcorrected and spun back into the westbound lane, he said. An oncoming Chevy Silverado pickup truck was unable to avoid hitting the Civic. The truck The three women — two in their 20s or 30s and one teen — and one girl of about 2 or 3 years old, died at the scene, Bradley said. The second child died a few hours later at a hospital.

The four people in the Silverado, a married couple and two older children, were hospitalized but not seriously injured, the CHP said. All were wearing seat belts, and the truck’s air bags had deployed.

It was unclear whether the people in the Civic were wearing seat belts. There was only one child seat found inside, Bradley said.

No names have been released.

The area had periodic rains on Saturday, but it wasn’t clear if a slick road was a factor in the car losing control.